If you're buying an EV in 2026, you've been told to focus on range and home charging. Both are misleading. The number that actually controls your day is range per hour — how many driving miles your charger puts back into the battery every hour it's plugged in. I learned this the hard way after upgrading from a Hyundai Ioniq 6 to a Rivian, then test-driving a Silverado EV. Below are the real numbers.
Quick answer: A standard 5.5 kW Level 2 charger adds about 20 miles per hour to an efficient EV like an Ioniq 6, but only ~13 miles per hour to a heavy EV like a Rivian. Upgrading to a 48-amp (11 kW) charger roughly doubles that. On a 200+ kWh truck like the Silverado EV, a slow home charger can take 100 hours to fill from empty.
The setup — three EVs, one garage, very different results
I've now charged three EVs at the same house in Northern California, on the same time-of-use plan, with two different Level 2 chargers. The variable that matters most isn't the car's battery size — it's the combination of the charger's amperage and the car's efficiency in miles per kWh.
| Vehicle | Battery | Efficiency | Range/hr (5.5 kW) | Range/hr (11 kW) |
|---|---|---|---|---|
| Hyundai Ioniq 6 | ~77 kWh | ~4.0 mi/kWh | ~22 mi/hr | ~44 mi/hr |
| Rivian (Large Pack) | ~135 kWh | ~2.4 mi/kWh | ~13 mi/hr | ~26 mi/hr |
| Silverado EV | 211 kWh | ~2.0 mi/kWh | ~4 mi/hr (real-world) | ~22 mi/hr |
That Silverado number is not a typo. I rented one on Turo, drove 150 miles round trip to Santa Cruz, plugged it into a basic Level 2 charger at home, and watched it pull about 4 miles of range per hour. To go from empty to full on a stock home charger, you're looking at roughly 100 hours of plug time.
The actual numbers — 24A vs 48A at home
I swapped from a 24-amp ChargePoint to a 48-amp Emporia Level 2 charger, which is about the fastest residential charger you can buy without rewiring your panel for an 80-amp Ford Charge Station Pro.
| Spec | Old setup (ChargePoint 24A) | New setup (Emporia 48A) |
|---|---|---|
| Amperage | 24 A | 48 A |
| Power output | ~5.5 kW | ~11 kW |
| Rivian range/hour | ~13 mi | ~20+ mi |
| 8-hour overnight session | ~104 mi added | ~160 mi added |
| Days of commuting before next charge | 1 day | 2–3 days |
The difference between those two columns is the difference between "I'm stuck planning my life around the wall plug" and "I plug in twice a week and forget about it." The 48-amp upgrade is what made the Rivian livable for me on California TOU rates that start at midnight.
How it compares — home vs public vs DC fast charging
| Method | Power | Range/hr (Rivian) | Cost (CA, ~$0.32/kWh) | Best for |
|---|---|---|---|---|
| Standard L2 (5.5 kW / 24A) | 5.5 kW | ~13 mi | ~$1.76/hr | Efficient EVs, short commutes |
| Upgraded L2 (11 kW / 48A) | 11 kW | ~26 mi | ~$3.52/hr | Big-battery EVs, daily drivers |
| Public Level 2 | 6–12 kW | ~15–26 mi | varies | Workplace top-ups |
| DC fast charging | 150–350 kW | hundreds | $0.45–0.60/kWh | Road trips only |
Public DC fast charging at $0.50+/kWh on a big-battery EV will quickly cost $60 to fill up. That breaks the entire "EVs are cheap to drive" pitch unless you actually have a viable home setup.
How to calculate yours
Don't guess. Open the EV charging calculator on the homepage and plug in your vehicle, charger amperage, and electricity rate. The calculator pre-fills your state's average rate, but you should override it with your actual utility bill — California TOU rates can vary 4× between peak and off-peak.
Common mistakes when buying an EV in 2026
- Looking at range, not battery size. A 400-mile Silverado EV needs 2.7× the kWh of a 250-mile Ioniq 6 — and that ratio determines your charge time, regardless of how fast the car can theoretically accept current.
- Ignoring efficiency (mi/kWh). A Rivian at 2.4 mi/kWh uses ~40% more electricity than an Ioniq 6 at 4.0 mi/kWh for the same trip. Same charger, very different range per hour.
- Assuming your panel can handle a 48A charger. Most older houses can't, or can but require a service upgrade. Get an electrician quote before you commit to a vehicle.
- Following the 10%–80% rule blindly. Battery-longevity advice is real, but it's useless if you physically don't have time to charge from 10% to 80% before your next commute. Match the rule to your driving reality.
- Forgetting time-of-use rates. If you're on a TOU plan and your charger can't refill the car during off-peak hours, you're paying daytime rates without realizing it.
Solar + battery storage — the overlooked combo
I have rooftop solar and 20 kWh of home battery storage. At night, about two-thirds of the EV's charging energy comes off the home battery, and the rest comes off the grid at off-peak rates. That drops my real cost per kWh below the published utility rate. If you live somewhere with cheap power (Kansas reportedly hits 3¢/kWh in places), this matters less — but in California, pairing an EV with a home battery is one of the highest-ROI upgrades you can make.
FAQ
How long does it take to charge an EV at home? On a standard 5.5 kW Level 2 charger, expect 8–14 hours for a typical sedan and 16–24+ hours for a large-battery EV or truck. A 48-amp 11 kW charger roughly cuts that in half.
Is a 48 amp Level 2 charger worth it? Yes, if your electrical panel supports it and you drive a large-battery EV. The cost difference over a 24-amp unit is typically $200–$400, and the doubled charging speed pays for itself in convenience within weeks.
Why is my EV charging slower than advertised? Advertised charge rates assume an efficient vehicle on a high-amperage charger. Heavier or less efficient EVs (trucks, SUVs) add fewer miles per hour from the same charger. Your panel amperage, charger amperage, and the car's onboard charger all set a cap.
Does charging only to 80% really protect the battery? For most modern EVs with active battery management, charging to 80% for daily use and 100% only before trips is reasonable. But if you can't physically charge enough overnight, charge what you need — battery degradation is gradual, missing your morning meeting is not.
Can I charge a Silverado EV or Rivian Max Pack on a standard home charger? Technically yes, practically no. A 5.5 kW charger on a 200+ kWh truck can take 80–100 hours from empty. Plan on a 48-amp charger minimum, or rely on DC fast charging for full recharges.
How do I know if my home can handle a 48 amp EV charger? You'll need a 60-amp dedicated circuit and enough headroom on your main panel. An electrician can do a load calculation in under an hour. Many homes built before 2000 need a panel upgrade.
The bottom line
EV charging at home in 2026 isn't a problem of "where do I plug in" — it's a problem of matching three things: your car's battery and efficiency, your charger's amperage, and your home's electrical capacity. Get those right before you sign the lease.